Invention Grant
- Patent Title: Perpendicular magnetic write head and magnetic recording device having additional magnetic layer contacting front yoke and shield
- Patent Title (中): 垂直磁写头和磁记录装置具有接触前磁轭和屏蔽的附加磁性层
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Application No.: US13644903Application Date: 2012-10-04
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Publication No.: US08908328B2Publication Date: 2014-12-09
- Inventor: Masahiro Saito , Norikazu Ota , Hiromichi Umehara , Masachika Hashino
- Applicant: TDK Corporation
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Main IPC: G11B5/31
- IPC: G11B5/31 ; G11B5/147 ; G11B5/127

Abstract:
A perpendicular magnetic write head includes: a magnetic pole having an end surface exposed on an air bearing surface, and extending in a height direction perpendicular to the air bearing surface; a first yoke having an end surface exposed on the air bearing surface, and facing a forward section of the magnetic pole with a gap layer in between; a second yoke located behind the first yoke with an insulating layer in between in the height direction, and connected to a backward section of the magnetic pole; a shield connecting the first yoke to the second yoke; and an additional magnetic layer located behind a boundary between the first yoke and the insulating layer, and in contact with the first yoke.
Public/Granted literature
- US20140098441A1 PERPENDICULAR MAGNETIC WRITE HEAD AND MAGNETIC RECORDING DEVICE Public/Granted day:2014-04-10
Information query
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